Ceiling Leak - Mold, patch hole

[dragonballz]

The leak has been fixed!

There was a slightly moldy/musty smell and bubbles in the wall/ceiling that led us to find the leak. The 2' x 2' hole has been there for a few days now. The moldy smell has subsided but I want to take precautions. I do not see any mold but is there a fumigator or some type of spray to get rid of any mold?

Also any tips on how to patch this hole? It appears to have multiple layers: Strapping, Metal Lathe, Concrete/morter (?), plaster (?), drywall, popcorn texture. I've seen enough This Old House that I'm confident I can just add strapping and screw in a patch of drywall.

Thanks

 

[The Cobbler]

that has leaked before or was leaking a long time/ looks like mold in there. some people are sensitive to it, others not so much.

 

[dragonballz]

that has leaked before or was leaking a long time/ looks like mold in there. some people are sensitive to it, others not so much.

Yes it has probably been leaking for a few years. We did not know if the bubbles were there before we bought the house. So we waited until the bubbles got bigger to know if it was an active leak. The bubbles grew so slowly we still could not tell so we finally took pictures to compare.

 

[rburke65]

How about some Clorox bleach in a spray bottle?

 

[rlitman]

I've had luck using Concrobium on mold. Not so much luck with bleach.

Looks like you have a real plaster on metal lath, with sheetrock over that, with a popcorn finish on the sheetrock. The grey stuff over the plaster is neither concrete nor mortar. It's a perlite cement plaster. That's your foundation layer in a real plaster wall/ceiling.

Anyway, how big is the room, and how well is that sheetrock attached to the plaster above?
It might make more sense to rip down all the sheetrock, and just re-rock the ceiling. You'd get rid of that nasty popcorn that way.